html,body{
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
}
*{
  box-sizing: border-box;
  -webkit-text-size-adjust: none;
  -webkit-user-select: none;
  -moz-user-focus: none;
  -moz-user-select: none;  
  user-select: none;
}
blockquote,body,button,dd,dl,dt,fieldset,form,h1,h2,h3,h4,h5,h6,hr,input,legend,li,ol,p,pre,td,textarea,th,ul,section,figure,figcaption{
  margin: 0;
  padding: 0;
  font-weight: normal;
}
ul,li{
  list-style: none;
}
input,textarea,button{
  outline: none;
}
#app{
  height: 100%;
}